Casting machine



Nov. 4 1924. 1,514,213

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' A. F. HOWE CASTING MACHINE Fileu Nov. 17. 1921 3 Sheets-Sheet 5 Y 'T'TOENEY Patented Nov. 4, 1924. 1

NITED STATES .ANDREW F. HOWiE, F GRANITE CITY, ILLINOIS.

CASTING MACHINE.

Application filed November 17, 1921.

To all whom z't may concern.'

Be it known that I, ANDREW F. Howii, a citizen of the United States, residing 'at Granite City, county of Madison, and State of Illinois, have invented a certain new and useful Improvement in Casting Machines, of which the following is a specification, reference'being had to the accompanying drawings, forming a part thereof.

This invention relates generally to molding or casting-machines and, more particularly, to a certain new and useful improvement in molding or casting-machines of the type especially adapted for the production of sand-patterns for casting purposes.

The principal object of my invention is to provide a machine of the type stated which will efficiently produce at one operation a plurality of sand-impressions or patterns and thereby facilitate quantity production.

Another object of my present invention is to provide a machine of the kind and for the purpose stated with a plurality of movable patterns and a substantially integral stripper-plate adapted for co-operation with all the several patterns in the formation of the sand-impressions.

A further obj ect of my present invention is to provide a machine of the kind and for the purpose stated which may be yeconomically constructed and which may be con veniently operated with a inininum of effort and labor in the setting and withdrawal of the several patterns.

A still further object of my invention is to generally improve upon and simplify the construction and operation of machines of the kind described.

'With the above and other objects in view, my present invention resides in the novel features of form, construction, arrangement, and combination of parts hereinafter described and afterwards pointed out in the claims.

In the accompanying drawings Figure l is a plan view of a machine constructed in accordance with and embodying my invention;

Figure 2 is a vertical sectional relevation of the machine taken approximately on'the line .Q -2, Figure l;

Figure 3 is an enlarged fragmental vertical sectional elevation taken approximately on the line 3 3, Figure l;

Figure 4 is an end elevation of the Inachine;

Serial No. 515,857.

Figure V5 is a fragmental perspective view, partly broken away and in section, of the table or str-called strippei'plate;

Figure 6 isa perspectiveview, with apart broken away, of one ofthe patterns; and

Figure Tshows a modified forni of pattern j in the form of a flat relatively heavy plate formed with oppositely disposed pairs of corner-extensions 2 2 'for engagement 'with spaced rails ory the like (not shown), in

order 'that the machine as a wholemayb'e conveniently moved yor conveyed to the several operating stations, suoli as, for instance,

the flask-setting and sand-filling, sandramj ming, and pouring stations, of the foundry.

Fixed upon the upper face'of basel, are

guiding-runners 3, and having engagement with the runners 3 for 'slidable movement on the base l, isa kframe 4, Fixed tol the frame 4, is a projecting draw-bar 5 connected by a link 6 to aflever 7 pivotally fas; tened at one end to the base l. It will be evident that, as the lever 7 is pivotally actuated, the frame 4 will be caused to slidably move in one or the other direction or reciprocatorily on base l.

Fixed to and upstanding frombase l around the "movable frame 4, is a plurality of bolts 8, disposed upon which are spacersleeves 9. l

10 indicates what is commonly known as the pattern-plate or pattern-supporting plate, 4which is disposed above the frame 4 and which is formed with apertured extensions l1 loosely fitting for movement` upon l the bolt-sleeves 9. Integral with Lor suitably fixed to, and adjacent opposite `side edges of, the under face of plate 10, arel rails 12 formed upon their inner farcey with preferably fea lplurality of pairs of oppositely disposed cain-ways 13-13, fitting in and co-operating with which are Icam-lugs 14e-14 prof jecting outwardly from opposite sides ofthe movableframe 4. It will also be evident ,i

that, as the framel4 is caused to 'slidably move ontlie base 1, the pattern-plate 10, due to the cooperatingengagement between the cam-lugs 14-14 and the cam-ways ylit-,13, will be correspondingly raisedand lowered in a vertical direction relatively to the base 1, the plate 10 being' guided in such movement, and held from movement other than in a vertical direction, by the fixed bolt-sleeves 9. Centrally the pattern-plate 10 is apertured to freely accommodate in its movement the upper portion of an open-ended tube 15 fixed at its lower end in, and upstanding from, the base 1, as best seen in Figure 2, for purposes later appearing.

Rigidly rested `and supported on the sleeves 9 and engaged by the bolts 8, is a table or so-called stripper-plate 16, and upstanding from the plate 16, is a plurality of dowels 17 arranged for the proper operative placement upon the plate 16 of a flask 18, which latter is, as shown, an open skeleton frame having eyes (not shown), as is coinmon, for accommodating the dowels 17, the flask 1S being removably positioned or rested upon .the table or plate 16 for pattern inipressions by the patterns shortly to be described.

Formed in and extending through the plate`16, as best seen in Figure 5, is an opening or pattern way 19. This pattern-way 19, as well asthe additional pattern-ways shortly to be described, may be of any desirable configuration to conform to the cooperating pattern; inasmuch, however, as the present machine is especially designed for the manufacture of packing or pistonrings, the way 19 is, to such end, circular in form in vplan view. I may descriptively designate such pattern-way 19 as the first or outer pattern-way of the machine, and such pattern-way divides the plate 16 into an outer section 20 and an inner section 21, such sections being spaced and separated by the pattern-ways 19. Io now facilitate quantity production, the plate 16 is formed with any suitable number of additional spaced pattern-ways 22. Such additional ways I will designate the inner pattern-ways, the several ways 19, 22 being concentrically disposed in a nested series, as shown. Such additional ways 22 further divide the plate 16 into a corresponding plurality of intermediate sections 23, which I may designate as auxiliary or supplemental stripper-portions, such portions 23 being similarly spaced and separated one from the other by the intervening pattern-ways 22 and the outer and inner sections20, 21 of the plate being further spaced and separated by the several intermediate or supplemental stripper sections 23 and the additional pattern-ways 22. In the present machine the several intermediate stripper-sections 23 are integral with, and

supported with their upper faces flush with the upper faces of, the outer and inner sections 20, 21 of the plate 16 by means of ribs or arms 24 disposed in the form of a spider and, in turn, integral with, and integrally connecting, the outer and inner sections 20,

tity production, each stripper-plate 16 is Y provided or formed with a plurality of sets or series of so nested pattern-ways 19, 22 and intermediate fillers or supplemental stripper-sections 23, the several sets being disposed with relation one to the other preferably as shown in Figure 1; and formed centrally upon the Lipper face of the plate 16, is a fixed pouring-gate pattern common to all such sets of nested ways 19, 22, the pouring gate pattern extending to a plane above the plane of the plate 16 and comprising, in plan view, a central annular or circular portion 25, leading from which to each nested series of ways 19, 22, and across the intermediate or supplemental plate-sections 23 to each way of each series, is an interrupted ruimer 26, as also best seen in Figure 1. Opposite the outer ends of the several runners 26, and disposed upon the plate 16 on preferably both its outer and inner plate sections 20, 21, v

are raisedv portions or bosses 27-27 adapted to form air-spaces in the furnished sand impression or pattern, as will be well understood; and the plate 16 being centrally cutaway within the area of the gate 25, to provide an orifice 28 registering with the bore of tube 15, for purposes later appearing.

Slipped downwardly through the ways 19, 22 to rest at their lower ends upon the pattern-plate 10, are the patterns 29, which, in the present instance, to correspond and for co-operation with the respective ways 19, 22, are of tubiform shape and of a heightaxial dimension-equalling the sand-depth plus the thickness of the stripper-plate 16 and the throw or distance of movement of their supporting-plate 10. Each of the patterns 29 is provided or formed longitudinally with suitably elongated slots 30 open to the lower end of the pattern, whereby the pattern is adapted to straddle and in thevertical up and down movement of its supporting plate 10 freely accommodate the several integral filler-supporting arms or spiders 24 Iof the plate 16. Each of the rings or patterns 29 is also detachably fastened in way co-operating position upon the plate 10 in any suitable manner. Preferably, for such purpose, as seen best in Figure 6, each slot 30 of each ring 29jis enlarged adjacent its lower open end, as at 31, to provide oppositely disposed lugs 32,

adapted to nt' apen' and engage with which are relatively small plates 33, which, in turn, are detacliably fastened to the plate 10 by 'screws or bolts 3e, as clearly seen in Figure 3. However, as best seen in Figure 7, each ring 29a may, if desired, be detachably fastened to its supporting plate by means of simple hook-bolts which are hooked into apertures 36 provided in the ring :29'L1 for the purpose and extended through the pattern' plate 10a and fastened as by nuts 3T, each ring or pattern 29a beingl also formed with, suitably spaced open lower end slots 30L for spider-clearance in the reciprocatory vertical travel or movement of the patternsupporting plate.

In use or operation, a flask 18 is placed upon the stripper plate 16 and engaged and held by the dowels 1'?. The flask being so positioned and held and the supporting pattern-plate 10 and its carried patterns 29 being in elevated or so-called normal position, or in the position thereof illustrated in l'fligu'r'e"r 3, in which position the several patterns 29 project atA their upper ends above the plane of the upper face of the stripper plate 16', including its several intermediate sections 23, to the proper sand impressing depth, the flask is filled with suitable sand and the sand duly rammed or` squeezed and preferably also at the same time punched. An impression of the several patterns 29 to the proper7 depth is thereby madeor formed in the sand of the flask, and a hole or opening in registration with the central aperture 28 made through the sand to provide a pouring-orifice, the sand so forced from the flask in the formation of such orifice being ejected or discharged 4from the machine through the registering aperture 28 and tube 15. I might here state that the patternsupporting plate 10 and its cams are enclosed within, and protected or shielded from sand in flask filling, ramming and punchingr by, a hood or apron 38, which is fixed to the plate 16 and base 1, as best seen in Figure 2.

The lever 7 is now pivotally actuated downwardly to slidably move the frame et' forwardly, whereupon the pattern-plate 10 will be lowered or caused to move downwardly into the position thereof illustrated in Figure 2, and on such downward movement of plate 10, the several patterns 29 will be easily and readily withdrawn from the flask with the expenditure of little labor and Ywith a minimum of sand disturbance, the flask 18, with its contained sand so impressed by the several patterns 29, as well as also by the fixed pouring-gate pattern of plate 16, is now removed from the machine, the patterns 29 again actuated to sandimpressing or normal position, and the same operations successively continued with any desired number of flasks. Such flasks having similar pattern and gate impressions may now be stacked one upon the `other as kof the lower or under flask forming. the

drag of each finished pattern, or vice versa, and the central orifices of the several flasks being in alignment and forming the pouring hole of the stacked flasks. it will hence be obvious that a single pouring of metal will run to all the several pattern impressions or cavities of the several flasks. i i

dy new machine is conveniently operable and exceedingly efficient in operation, and l may add that by the use of my machine I am enabled to effect the production in quan'- tities of individual piston or packing rings` or other castings with a minimum expenditure of time and labor.

l aniaware that changes' in the form, construction, arrangement, and combination of the several parts Iof my machine may be made ,and substituted for those herein shown and described without departing fromt-he nature and principle of my invention. y

Having thus described my invention, what l. claim and desire to secure by Letters lPatent is:

1. A casting-machine including a stripperplate comprising an outer section., an inner section, and an intermediate section spaced and separated one from the other. by patternways extending through the plate.

i?. A casting-machine including a stripperplate comprising an outer section, an inner section, and an intermediate section, the saine being spaced and separated one from the other by pattern-ways extending through Y the plate and the inner and intermediate 7 sections being rigidly fixed tor the' outer 'section.y i

3. ,er casting-machine including a stripper-plate comprising an outer section, an inner section, and an intermediate section, the same being' spaced and separated one from the other by patte 'ii-ways extending through the plate and the inne'il and intermediate sections bcing integrally united to the outer section. A

e. A casting-machine including a stripper plate comprising an outer section, an inner section, an intermedlatel sectioin the inner` outer, and intermediate sections being spaced and separated one from the other by patternways extending thro 'i the plate, 'and arms connecting the outer, i er,r and intermediate sections together. A H

A casting-machine including a stripper plate comprising as an integral whole an if outer section, an inner section, a plural-ity of sections intermediate the outer and inner sections, the inner, outer, and intermediate sections being spaced and separated one from the other by pattern-ways extending through the plate, and arms uniting the outer, inner, and intermediate sections.

6. A casting-machine including a per plate comprising an outer section, an inner section, a plurality of sections intermediate the outer and inner sections, the inner, outer, and intermediate sections being spaced and separated one trom the other by pattern-ways extending through the plate, and connecting arms between the outer, inner, and intermediate sections, in combination with a plurality of individual patterns movable in the respective ways.

- 7. A casting-machine including a stripper plate comprising an outer section, van inner section, a plurality of sections intermediate the outer and inner sections, the inner, outer, and intermediate sections being spaced and separated one from the other by patternways extending through the plate, and connecting arms between the outer, inner, and intermediate sections, in combination with a plurality of individual patterns movable in the respective ways, and means for simultaneously elevating and lowering all the patterns in the ways relatively7 to the plate.

8. A casting-machine including a stripper plate comprising an outer section, an inner section, a plurality of sections intermediate the outer and inner sections, the inner, outer, and intermediate sections being spaced and separated one from the otherby patternways extending through the plate, and connecting arms between the outer, inner, and intermediate sections, in combination with a movable pattern-supporting plate, a plurality of individual patterns fastened to the plate and arranged for movement in the respective ways, and means Yfor actuating the pattern-plate to simultaneously raise and lower the patterns in the ways relatively to the stripper plate.

9. A casting-machine including a stripperplate comprising as an' integral whole an outer section, an inner section, a plurality of sections intermediate the outer and inner sections, the outer, inner, and intermediate sections being spaced and separate one from the other by annular pattern-ways extending through the plate. and radial arms uniting the outer, inner, and intermediate sections.

10. A casting-machine including a stripper-plate comprising an outer section, an inner section, a plurality of sections intermediate the outer and inner sections, the outer, inner, and intermediate sections being spaced and separate one from the other by annular pattern-ways extending through the plate,

stripand radial connecting arms between the outer, inner, and intermediate sections, in

combination with a movable pattern-suppor ing plate, a plurality of individual tubitorm patterns fastened to the plate and arranged for movement in the respective ways, and means tor actuating the pattern-plate to simultaneously raise and lower the patterns in the ways relatively to the plate, each ot the patterns having longitudinal slots for accommodating said arms.

l1. A casting-machine including a stripper plate comprising a plurality of nested series ot annular pattern ways extending through the plate and provided upon its upper tace with a pouring-gate pattern common to all said ways, in combination with a movable pattern-supporting plate, a plurality ot' sets of nested tubitorm patterns fastened to the plate andL arranged for movement in the respective ways, and means for actuating the pattern-plate to simultaneously raise and lower the nested patterns in the ways relatively to the plate.

l2. A casting-machine including a patternsupporting plate, a pattern disposed upon the plate, and means t'or detachably fastening the pattern to the plate.

18. A casting-machine including a pattern-supporting plate, a tubular pattern disposed at an end upon the plate, and means for detachably fastening the pattern to the plate.

le. A casting-machine including a stripper plate comprising anlouter section, an inner section, a plurality of sections intermediate the outer and inner sections, the inner, outer, and intermediate sections being spaced and separated one from the other by patternways extending through the plate, and arms connecting the outer, inner, and intermediate sections.

15. A casting-machine including a stripper-plate comprising an outer section, an inner section, a plurality ot sections ntermediate the outer and inner sections, the outer, inner, and intermediate'sections being spaced and separate one from the other by pattern -ways extending through the plate, and connection arms between the outer, inner, and-intermediate sections, in combination with a movable,` pattern-supporting plate, a plurality of individual patterns fastened to the plate and arranged tor movement in the respective ways, and means for actuating the pattern-plate to simultaneously raise and lower the patterns in the ways relatively to the plate, each of the patterns having longitudinal slots Jfor accommodating said arms.

ln testimony whereof, l have signed my name to this specification.

ANDREW F. HOWE. 

